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Old 11-17-2009, 10:03 AM   #230
pilotbob
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Posts: 19,832
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Join Date: Jan 2007
Location: Tampa, FL USA
Device: Kindle Touch
Quote:
Originally Posted by ekaser View Post
So, I suspect that Kindle for PC is using the Windows Data Protection API to encode and scramble the Kindle PID and store it in the kindle.info file. But I don't have any experience with the DPAPI layer, and know even less , so figured I would leave it to other more cryptographically-minded folks to puzzle it out.
Using DAPI is pretty easy to do, especially with .Net. The think about DAPI is that you don't need to know the key (iirc) since the encryption is based on the currently logged in user of the PC.

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